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Table 3 Number of same site second primary cancers

From: Second primary cancer risk - the impact of applying different definitions of multiple primaries: results from a retrospective population-based cancer registry study

 

Number of subsequent same site primary cancers‡

 

Registry

IARC/IACR rules

SEER rules

First primary cancer

n

n

n

Lung (C33-34)

24

8

17

Colorectal (C18-20)

56

31

55

Female Breast (C50)

98

1

79

Prostate (C61)

3

0

0

Head & neck (C00-C14, C30-C32)

32

24

29

Stomach (C16)

3

0

1

Bladder (C67)

1

0

1

Oesophagus (C15)

1

0

0

Melanoma (C43)

28

0

28

Pancreas (C25)

1

0

0

Ovarian (C56)

1

0

1

Kidney (C64)

3

0

2

Corpus uteri (C54)

1

0

1

  1. Abbreviations: SEER Surveillance Epidemiology and End Results, IARC International Agency for Research on Cancer, IACR International Association of Cancer Registries.
  2. ‡diagnosed >60 days- 5 years after first primary cancer.